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首页> 外文会议>International conference on graphic and image processing >An Interactive Display System for Large-Scale 3D Models
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An Interactive Display System for Large-Scale 3D Models

机译：大型3D模型的交互式显示系统

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摘要

With the improvement of 3D reconstruction theory and the rapid development of computer hardware technology, the reconstructed 3D models are enlarging in scale and increasing in complexity. Models with tens of thousands of 3D points or triangular meshes are common in practical applications. Due to storage and computing power limitation, it is difficult to achieve real-time display and interaction with large scale 3D models for some common 3D display software, such as MeshLab. In this paper, we propose a display system for large-scale 3D scene models. We construct the LOD (Levels of Detail) model of the reconstructed 3D scene in advance, and then use an out-of-core view-dependent multi-resolution rendering scheme to realize the real-time display of the large-scale 3D model. With the proposed method, our display system is able to render in real time while roaming in the reconstructed scene and 3D camera poses can also be displayed. Furthermore, the memory consumption can be significantly decreased via internal and external memory exchange mechanism, so that it is possible to display a large scale reconstructed scene with over millions of 3D points or triangular meshes in a regular PC with only 4GB RAM.
机译：随着3D重建理论的改进和计算机硬件技术的飞速发展，重建的3D模型规模不断扩大，复杂度也在不断提高。在实际应用中，具有数以万计的3D点或三角形网格的模型是常见的。由于存储和计算能力的限制，对于某些常见的3D显示软件（例如MeshLab），很难实现与大规模3D模型的实时显示和交互。在本文中，我们提出了一种用于大型3D场景模型的显示系统。我们事先构造了重建的3D场景的LOD（细节水平）模型，然后使用核外依赖于视图的多分辨率渲染方案来实现大规模3D模型的实时显示。通过所提出的方法，我们的显示系统能够实时渲染，同时在重建场景中漫游，并且还可以显示3D相机姿势。此外，可通过内部和外部内存交换机制显着减少内存消耗，从而可以在仅具有4GB RAM的常规PC中显示具有数百万个3D点或三角形网格的大规模重建场景。

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